diff --git a/PySimpleGUI.py b/PySimpleGUI.py
index a5cd837e..6df844d3 100644
--- a/PySimpleGUI.py
+++ b/PySimpleGUI.py
@@ -1,5 +1,5 @@
 #!/usr/bin/python3
-version = __version__ = "4.1.0 Unreleased"
+version = __version__ = "4.1.0.1 Unreleased"
 
 import sys